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kubeadm環境の構築手順 on Ubuntu(x86_64)

Last updated at 2020-06-14Posted at 2020-06-13

dockerのinstall

$ sudo apt-get update -y

$ sudo apt-get install -y \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common

$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

$ sudo add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"

$ sudo apt-get update
$ sudo apt-get install -y docker-ce docker-ce-cli containerd.io

kubeadmのinstall

$ sudo apt-get install -y iptables arptables ebtables
$ sudo update-alternatives --set iptables /usr/sbin/iptables-legacy
$ sudo update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
$ sudo update-alternatives --set arptables /usr/sbin/arptables-legacy
$ sudo update-alternatives --set ebtables /usr/sbin/ebtables-legacy

$ sudo apt-get install -y apt-transport-https curl
$ curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
$ cat <<EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list
deb https://apt.kubernetes.io/ kubernetes-xenial main
EOF
$ sudo apt-get update
$ sudo apt-get install -y kubelet kubeadm kubectl

確認

$ kubeadm version
kubeadm version: &version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.3", GitCommit:"2e7996e3e2712684bc73f0dec0200d64eec7fe40", GitTreeState:"clean", BuildDate:"2020-05-20T12:49:29Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}

master nodeでnodeのjoinコマンドを生成

$ kubeadm token create --print-join-command

※ 使い終わったらkubeadm token deleteでtokenを消しましょう

worker label貼り

$ kubectl label nodes [node-name] node-role.kubernetes.io/worker=worker

参考

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